Period
to 22 July 2019

The following table provides summary statistics for contract job vacancies advertised in Essex with a requirement for TDD skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited TDD over the 6 months to 22 July 2019 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Test-Driven Development (TDD)
6 months to
22 Jul 2019
Same period 2018 Same period 2017
Rank 5 7 2
Rank change year-on-year +2 -5 +29
Contract jobs citing TDD 179 155 293
As % of all contract IT jobs advertised in Essex 21.88% 19.21% 33.52%
As % of the Processes & Methodologies category 24.90% 21.41% 36.99%
Number of daily rates quoted 110 136 214
Essex median daily rate £525 £525 £500
Median daily rate % change year-on-year - +5.00% +29.03%
10th Percentile £425 £425 £278
90th Percentile £551 £600 £600
East of England median daily rate £475 £525 £488
% change year-on-year -9.52% +7.69% +20.30%
Number of hourly rates quoted 2 5 24
Essex median hourly rate £48.65 £59.38 £40.00
Median hourly rate % change year-on-year -18.06% +48.44% +29.03%
10th Percentile £37.64 £33.80 £35.00
90th Percentile £60.37 £75.00 £63.75
East of England median hourly rate £48.65 £55.00 £40.00
% change year-on-year -11.55% +37.50% +27.19%

TDD is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Essex with a requirement for process or methodology skills.

All Process and Methodology Skills
Essex
Contract vacancies with a requirement for process or methodology skills 719 724 792
As % of all contract IT jobs advertised in Essex 87.90% 89.71% 90.62%
Number of daily rates quoted 462 439 528
Essex median daily rate £450 £500 £450
Median daily rate % change year-on-year -10.00% +11.11% +28.48%
10th Percentile £301 £288 £265
90th Percentile £587 £600 £588
East of England median daily rate £450 £428 £425
% change year-on-year +5.26% +0.59% +3.03%
Number of hourly rates quoted 21 30 56
Essex median hourly rate £26.00 £31.77 £35.00
Median hourly rate % change year-on-year -18.15% -9.24% +84.21%
10th Percentile £12.25 £15.68 £13.69
90th Percentile £48.75 £62.34 £63.75
East of England median hourly rate £17.50 £17.50 £30.00
% change year-on-year - -41.67% +33.33%

TDD
Job Vacancy Trend in Essex

Job postings citing TDD as a percentage of all IT jobs advertised in Essex.

Job vacancy trend for TDD in Essex

TDD
Contractor Daily Rate Trend in Essex

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing TDD in Essex.

Contractor daily rate trend for TDD in Essex

TDD
Contractor Daily Rate Histogram in Essex

The daily rate distribution of IT jobs citing TDD in Essex over the 6 months to 22 July 2019.

Contractor daily rate histogram for TDD in Essex

TDD
Contractor Hourly Rate Trend in Essex

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing TDD in Essex.

Contractor hourly rate trend for TDD in Essex

TDD
Contractor Hourly Rate Histogram in Essex

The hourly rate distribution of IT jobs citing TDD in Essex over the 6 months to 22 July 2019.

Contractor hourly rate histogram for TDD in Essex

TDD
Contract Job Locations in Essex

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing TDD within the Essex region over the 6 months to 22 July 2019. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Southend-on-Sea +6 58 £510 +2.00%
Harlow -1 5 £450 -5.26%
Brentwood +3 3 £466 -1.89%
Chelmsford - 3 £438 - 3
TDD
East of England

For the 6 months to 22 July 2019, IT contractor jobs citing TDD also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads across the Essex region with a requirement for TDD.

1 162 (90.50%) Agile Software Development
2 148 (82.68%) Java
3 123 (68.72%) Oracle
4 97 (54.19%) SOAP
5 79 (44.13%) BDD
6 72 (40.22%) Web Services
7 71 (39.66%) SOA
8 70 (39.11%) Java 8
9 65 (36.31%) Business Intelligence
9 65 (36.31%) Finance
10 64 (35.75%) Electronics
10 64 (35.75%) Telecoms
10 64 (35.75%) Manufacturing
10 64 (35.75%) Programme Management
10 64 (35.75%) Spring
10 64 (35.75%) Marketing
10 64 (35.75%) Digital Marketing
10 64 (35.75%) SAP
11 63 (35.20%) Microservices
12 62 (34.64%) WSO2
12 62 (34.64%) RESTful
13 60 (33.52%) Apache Camel
13 60 (33.52%) Middleware
14 59 (32.96%) Oracle SOA Suite
15 58 (32.40%) Mule
15 58 (32.40%) Unix
15 58 (32.40%) JIRA
16 57 (31.84%) Oracle Service Bus
17 54 (30.17%) Scrum
17 54 (30.17%) Git (software)

TDD
Co-occurring IT Skills in Essex by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 59 (32.96%) Oracle SOA Suite
2 58 (32.40%) Mule
3 57 (31.84%) Oracle Service Bus
4 30 (16.76%) Confluence
5 6 (3.35%) WebLogic
6 3 (1.68%) Apache
6 3 (1.68%) JBoss
7 2 (1.12%) Cloud Foundry
Applications
1 1 (0.56%) Microsoft Project
Cloud Services
1 52 (29.05%) Amazon AWS
2 3 (1.68%) Microsoft Azure
Communications & Networking
1 8 (4.47%) Internet
2 1 (0.56%) HTTP
2 1 (0.56%) SSL
2 1 (0.56%) TCP/IP
Database & Business Intelligence
1 51 (28.49%) MySQL
2 43 (24.02%) Oracle Database
3 9 (5.03%) BusinessObjects
3 9 (5.03%) Oracle OWB
4 7 (3.91%) Pentaho
5 5 (2.79%) SQL Server
6 4 (2.23%) Impala
7 2 (1.12%) Relational Database
8 1 (0.56%) MongoDB
Development Applications
1 58 (32.40%) JIRA
2 54 (30.17%) Git (software)
3 53 (29.61%) Jenkins
4 45 (25.14%) JUnit
5 43 (24.02%) SoapUI
6 25 (13.97%) Maven
7 12 (6.70%) Selenium
8 9 (5.03%) Checkstyle
8 9 (5.03%) JIRA Agile
8 9 (5.03%) JMeter
9 7 (3.91%) LoadRunner
10 5 (2.79%) CA Gen
11 4 (2.23%) Zephyr
12 3 (1.68%) Cucumber
12 3 (1.68%) Subversion
13 2 (1.12%) Bitbucket
13 2 (1.12%) Gradle
14 1 (0.56%) Android Studio
14 1 (0.56%) Calabash
14 1 (0.56%) SpecFlow
General
1 65 (36.31%) Finance
2 64 (35.75%) Electronics
2 64 (35.75%) Manufacturing
2 64 (35.75%) Marketing
2 64 (35.75%) Telecoms
3 3 (1.68%) Automotive
Job Titles
1 118 (65.92%) Developer
2 110 (61.45%) Java Developer
3 56 (31.28%) Senior Developer
4 54 (30.17%) Senior Java Developer
5 27 (15.08%) Lead Developer
6 26 (14.53%) Lead Java Developer
7 13 (7.26%) Integration Developer
8 10 (5.59%) QA Tester
8 10 (5.59%) Tester
9 9 (5.03%) Java Team Leader
9 9 (5.03%) Scrum Master
9 9 (5.03%) Team Leader
10 8 (4.47%) Analyst
10 8 (4.47%) SOA Developer
10 8 (4.47%) Test Analyst
11 5 (2.79%) QA Analyst
11 5 (2.79%) QA Test Analyst
12 4 (2.23%) Java Engineer
12 4 (2.23%) Senior QA Tester
12 4 (2.23%) Senior Tester
Libraries, Frameworks & Software Standards
1 97 (54.19%) SOAP
2 72 (40.22%) Web Services
3 64 (35.75%) Spring
4 62 (34.64%) RESTful
5 60 (33.52%) Apache Camel
5 60 (33.52%) Middleware
6 46 (25.70%) Spring Boot
7 26 (14.53%) XML
8 25 (13.97%) JSON
9 21 (11.73%) Swagger
9 21 (11.73%) WireMock
9 21 (11.73%) XSLT
10 15 (8.38%) J2EE
11 9 (5.03%) Lambda Expressions
11 9 (5.03%) REST
12 8 (4.47%) Java EE
13 6 (3.35%) JMS
14 5 (2.79%) Hibernate
15 4 (2.23%) GWT
15 4 (2.23%) Swing
Miscellaneous
1 48 (26.82%) Greenfield Project
2 9 (5.03%) Hybrid Cloud
3 8 (4.47%) Client/Server
4 2 (1.12%) Mainframe
5 1 (0.56%) Enterprise Software
5 1 (0.56%) N-Tier
5 1 (0.56%) Virtual Team
Operating Systems
1 58 (32.40%) Unix
2 47 (26.26%) Linux
3 40 (22.35%) CentOS
4 2 (1.12%) Red Hat Enterprise Linux
5 1 (0.56%) Android
5 1 (0.56%) Windows
Processes & Methodologies
1 162 (90.50%) Agile Software Development
2 79 (44.13%) BDD
3 71 (39.66%) SOA
4 65 (36.31%) Business Intelligence
5 64 (35.75%) Digital Marketing
5 64 (35.75%) Programme Management
6 63 (35.20%) Microservices
7 54 (30.17%) Scrum
8 52 (29.05%) Scaled Agile Framework
9 32 (17.88%) User Stories
10 26 (14.53%) Kanban
11 24 (13.41%) Test Automation
11 24 (13.41%) Test Strategy
12 22 (12.29%) Mentoring
13 21 (11.73%) SDLC
14 20 (11.17%) Project Planning
15 19 (10.61%) Process Improvement
16 18 (10.06%) Continuous Improvement
17 16 (8.94%) Integration Testing
17 16 (8.94%) Performance Testing
Programming Languages
1 148 (82.68%) Java
2 70 (39.11%) Java 8
3 25 (13.97%) SQL
4 21 (11.73%) XPath
5 19 (10.61%) C
6 14 (7.82%) C++
7 7 (3.91%) Perl
8 6 (3.35%) Shell Script
9 5 (2.79%) PL/SQL
10 2 (1.12%) Kotlin
11 1 (0.56%) C#
11 1 (0.56%) Java 9
11 1 (0.56%) JavaScript
11 1 (0.56%) T-SQL
11 1 (0.56%) VB.NET
Qualifications
1 18 (10.06%) Security Cleared
2 17 (9.50%) ISEB
2 17 (9.50%) ISTQB
3 15 (8.38%) OCPJP
3 15 (8.38%) SC Cleared
3 15 (8.38%) Sun Certification
4 9 (5.03%) ISTQB Foundation Certification
5 1 (0.56%) BPSS Clearance
5 1 (0.56%) ISEB Practitioner
5 1 (0.56%) ISTQB Advanced Certification
Quality Assurance & Compliance
1 21 (11.73%) QA
2 6 (3.35%) Data Quality
System Software
1 17 (9.50%) Docker
Systems Management
1 11 (6.15%) Ansible
2 10 (5.59%) Terraform
3 2 (1.12%) Opscode Chef
3 2 (1.12%) Puppet
4 1 (0.56%) HP Quality Center
Vendors
1 123 (68.72%) Oracle
2 64 (35.75%) SAP
3 62 (34.64%) WSO2
4 40 (22.35%) Red Hat
5 31 (17.32%) Talend
6 15 (8.38%) Sun
7 5 (2.79%) BEA
7 5 (2.79%) Informatica
7 5 (2.79%) Pega
7 5 (2.79%) webMethods
8 4 (2.23%) Google
9 2 (1.12%) CA Agile Central
10 1 (0.56%) Microsoft